US12233A - Improvement in sewing-machines - Google Patents

Description

, 2 Sheets-Sheet 1. J. S. CONANT..

Sewing- Machine.

No. 12,233. PatentedU an. 16,1855.

J- S- CONANT;

Sewing Maqhinm- I 2 Sheets-Sheet 2.

No. 12,233. Patented- .lan.16, 1855.

' elevation.

UNITED STATES.

PATENT O FICE.-

JOTHAM S. (-ONA'NT, OF NENV YORK, N. Y., ASSIG NOR TO A. B. ELY,

OF BOSTON, MASSAOHUSETT IMPROVEMENT IN SEWING- MACHINES.

Specification ibnuing part of Letters Phtent No. 1 2,233, emu January it, lets.

To all whom it may concern.-

Be it known that I, J OTHAM S. Comm, of New York, in the county of New York and btate' of New York, have invented certain new and useful Improvcmcntsin Sewinghiaehines; and I hereby declare the following'to be a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, in which 4 Figure l is a top view of the machine with my improvements attached; Fig.. .2, avertical section upon the line of Fig. 1, Fig. 3, afront M y improvemen s may be applied to any description of sewing-n1ach1ne, but I'have'rep resented them in the accompanying drawingsas attached to one recently invented by SherburneO. Blodgett, of Georgetown, Massachusetts, and which operates with two separate sive stitches. .Heretofore this has consisted of a straight or curved bar, to which the goods were attached, and which was fed through the machine from end to end, the operation of sewing requiring to be interrupted from time to time, that the feed-bar might be withdrawn,

- and. the goods attached thereto. when it was again entered at the other side of the machine.

This involved aconsiderable consumption of time, and was accompanied by other inconveniences, all of which my present invention is designed to remove. I

My improvement consists in the use of an endless feeder and baster-plate, revolving continuously, and so constructed as to supply the cloth to the needles without the necessity at any time of stopping the machine for the purpose of attaching the goods to the feed-bar, as

has heretofore been the case.

To enable others skilledin the art to make and use my invention, I will proceed to defeed it to the needles.

this revolving feeder may-be placed ina ver-' carrying it out, premising that there are other methods by which the same end may be at;v tained, which are viou'sly but the equivalents of the one which I am about to describe. A is the horizontal base-plate or table of the machine, which may be made circular or of such other form as circumstances may require.

O is 'a vertical flange, cast in one piecewith the plate A and extending above and below it.

D is a circular feeder, of the form represented in section in Fig. 2. This feeder is so fitted and applied to the flange 0 as to be held in place and prevented from moving in a lateral direction either when revolved or when at rest. The feeder D, instead of being a straight and long bar, as in other machines, is made circular and without end, and is placed in the' machine represented in the A accompanying drawings directly over the path of the needles, which are shown at a and b.

c are pins or points which project from the i outer periphery of the feeder at or near its lower edge. The object of these pins is to in sure the motion of the cloth with the feeder as it revolves. They may be of sufficient length to penetrate entirely through the material to be sewed, or but just long enough to lay hold of it and move it along without penetrating it; or theymayeven be dispensed with altogether, the

periphery of the revolving feeder being made 1 sufficiently rough to, lay hold of the cloth and It is evident, also, that tical or any other position suitedto the nature of the work to be done, and that it may also be madeof any size larger or smaller than that here represented without altering the nature of my invention, which consists, as before stated, in an endless revolving feeder having asperities upon its periphery by which the cloth is fed to the needles, as before stated.

This endless feeder may be caused to revolve by any suitable means, the choice of which will depend upon the position which it is made to occupy in the machine, and upon other attendant circumstances.

In the machine represented in the accompany ing drawings the upper edge of the feeder D is furnished with ratchet-teeth d.

E is an impclling-pawl, which engages with seribe'the method which I, have adopted for g the teeth of d, and is attached to a crank, F,

rotary motion is communicated through the pawl E to the rotary feeder D whenever the machine is in operation.

S is-a'bent arm, one end of which is attached -to the bed-plate at T,'and which is. made to extend over the cloth-feeder and down in front of it. Theother end of this arm rests against the cloth at the point where the sewing is performed, and is provided with a slot, f, of sufficient size to permit the passage of the needles as well as the points of the feeder, where such points are made use of. i

The other parts of the sewing-machine, as

' they constitute no part of my invention, need not be described, as my improvements may be applied to sewing-machines of any description. I will, however, briefly refer to some of the principal parts of the machine and point outsome of their relative positions with re-' gard to the rotary feeder and pressure-sprin K L are the two sliding bars which carry the needles a b. v

M is the cam by which said slideebars are operated.

N O are the thread-bobbinaone for each needle.

-my signature.

'1? is the driving-sha1t.-

Q R are the gears which ing' and cam shafts.

It is .evident that a cloth-feeder like that above described requires no such removal or setting back as is necessary at certain intervals when a straight bar or clamp is employed.

Consequently my improvement not .0n1y saves the room-which a long bar necessarily requires for its operation, but also the time which is lost in effecting the retraction of the bar. afterthe completion of a line of stitches. The endless rotating feed may be composed of an endiess chain or made up of a series, of hinged links; or it may be composed of an endlessbandof leather or other flexible su bstance. These variations of construction, being mere modifications, I consider to be in- Volvedin my invention.

What I claim as my invention, and desire to secure by Letters Patent, is-

An endless rotary cloth-feeder, in combina tionvwith a reciprocating needle or needles,

substantially as described.

In testimony whereof I have hereunto set in presence 'of- W'M. LEE, C. 0. PAUL.

connect the driv- JOTHAMQ s. 'CQNANT.

Images